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KOSPET
Free & Fast Shipping
Up to 2-Year Warranty
Up to 30-Day Trial
24/7 The Best Support
Join our Rewards Club now! *Not valid with other product offers.
More KOSPET Membership Benefits | Earn Points Instantly & Redeem Free Accessories or Coupons
Sign up to become a KOSPET member and complete your purchase to unlock member bonus points instantly.
1. Get 50 bonus points instantly upon registration
2. Earn points based on your order value after purchase
3. Redeem accessories or coupons for FREE.
Upgrade your watch experience at no extra cost.
Why settle for one? Pair with our proven TANK S2 / TANK T3 Ultra 2 —perfect as a backup or a gift for a loved one.
Bundle & Save Big.
Please note, bundle offers here are NOT valid with other product bundle offers.
KOSPET CARE-Paket Perpanjangan Garansi 1 Tahun untuk Perangkat Saat Ini
$19.99 USD
KOSPET CARE-1-Year Extended Warranty Plan for the Current Device:
Total peace of mind. Protect your watch from accidental damage and extend your warranty to 2 years.
KOSPET SHIELD-2-Year Extended Warranty Plan for All Devices：
Unlock Elite Protection. Unlimited accidental replacements for all your KOSPET devices plus a FREE Magic Watch.
KOSPET CARE-Paket Perpanjangan Garansi 1 Tahun untuk Perangkat Saat Ini
$19.99 USD
1 Device 24-Month Protection Plan $19.99
Instead of buying a new watch at full price, replace your damaged unit for just 40% of the MSRP.
Skip the hassle of international shipping. Just send us a verification video, and we’ll ship your replacement immediately.
Your claims move to the front of the line with our dedicated service team.
Activate in seconds. Stay protected for years.
KOSPET SHIELD-Paket Garansi Perpanjangan 2 Tahun untuk Semua Perangkat
$89.99 USD
KOSPET CARE-1-Year Extended Warranty Plan for the Current Device:
Total peace of mind. Protect your watch from accidental damage and extend your warranty to 2 years.
KOSPET SHIELD-2-Year Extended Warranty Plan for All Devices：
Unlock Elite Protection. Unlimited accidental replacements for all your KOSPET devices plus a FREE Magic Watch.
KOSPET SHIELD-Paket Garansi Perpanjangan 2 Tahun untuk Semua Perangkat
$89.99 USD
Elite Annual Pass for All Your KOSPET Devices $99.99 / Year
One Membership. Total Protection. Endless Rewards.
*Klik [Di Sini] untuk mengunduh Sumber Daya Peta Offline.
KOSPET
Free & Fast Shipping
Up to 2-Year Warranty
Up to 30-Day Trial
24/7 The Best Support
| General | |
|---|---|
Storage |
|
Memory |
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Body Material |
|
Case Back Material |
|
Dimensions |
|
Weight (Without Package) |
|
Built-in Speaker/Microphone |
|
Buttons |
|
Water-resistance Grade |
|
Strap Material |
|
Quick Release Straps |
|
Min & Max. Wrist Dimensions |
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| Display | |
Touchscreen |
|
Material |
|
Size |
|
Display Resolution |
|
PPI |
|
Peak Brightness |
|
| Battery | |
Battery Capacity |
|
Battery Type |
|
Charging Method |
|
Theoretical Charging Duration |
|
Typical Usage Scenario Battery Life |
|
Heavy Usage Scenario Battery Life |
|
AOD Mode Battery Life |
|
Continuous GPS Usage Battery Life |
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| Sensors | |
Health |
|
Movement |
|
GPS |
|
Galileo |
|
GLONASS |
|
BeiDou |
|
QZSS |
|
NavIC (IRNSS) |
|
Geomagnetic Sensor |
|
Barometric |
|
Altimeter |
|
Ambient Light Sensor |
|
Temperature Sensor |
|
| Health & Wellness Monitoring | |
24H Health Monitoring |
|
One-tap Measurement |
|
Heart Rate |
|
Blood Oxygen (SpO₂) |
|
Blood Pressure |
|
Stress Level |
|
Mood |
|
Sleep Stages (including REM) |
|
Naps |
|
Sleep Schedule |
|
Abnormally High & Low Heart Rate |
|
Low Blood Oxygen |
|
Menstrual Cycle Tracking |
|
Breathing Exercise |
|
| Outdoor Features | |
GPS Positioning |
|
Flashlight |
|
Compass |
|
Barometric Altimeter |
|
Altitude Calibration |
|
Route Records |
|
Route Deviation Reminders |
|
Route Back |
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Offline Maps |
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Real-time Navigation |
|
Route Import |
|
Save Location Points & Routes |
|
Walkie-talkie |
|
Moon Phase |
|
Tides |
|
Extreme Weather Alerts |
|
Sunrise & Sunset Times |
|
| Training Features | |
24-Hr Activity Tracking (Calories, Steps, Distance) |
|
Personalized Training Plans |
|
Smart Recognition |
|
ApexMotion Sports |
|
Freestyle Training Modes |
|
Freedive Mode |
|
Scuba Dive Mode |
|
Gauge Mode |
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| Running Features | |
Distance |
|
Average Pace |
|
Cadence |
|
Average Step Rate |
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Real-time Navigation |
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Route Tracking |
|
Heart Rate Monitoring |
|
Heart Rate Zones |
|
| Swimming Features | |
SWOLF |
|
Average Pace |
|
Stroke Recognition |
|
Stroke Rate |
|
Lap Count |
|
Heart Rate Monitoring |
|
Heart Rate Zones |
|
| Daily Smart Features | |
Connectivity |
|
Notifications |
|
Alarm Clock |
|
Calculator |
|
Calendar |
|
Call Quick Reply (Android Devices Only) |
|
Camera Control |
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Cover to Lock Screen |
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Do Not Disturb |
|
Emergency SOS |
|
Find Phone |
|
GPS Time |
|
Morning Updates |
|
Music Control |
|
Music Storage |
|
Raise to Wake |
|
Screen Lock & Password |
|
Sedentary Reminder |
|
Shortcut Cards |
|
Silent Mode |
|
Stopwatch |
|
Timer |
|
Voice Assistant |
|
Water Ejection |
|
Weather |
|
World Clock |
|
| Compatibility | |
System Requirements |
|
Application |
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Available on Google Play |
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Available on App Store |
|
Languages |
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Third-party App Compatibility |
|
Plunge into your diving excursions with three built-in dive modes and specialized dive data.
Crafted with Inox 360 stainless steel, SGS-certified, and tested to 20 MIL-STD-810H standards.
With an integrated ambient light sensor, the 1.96" AMOLED display remains clear under various lighting conditions.
Optimize your training and recovery with 23 ApexMotion sports modes and dedicated performance metrics.
Celebrated for its innovative design that superbly blends style with performance, KOSPET TANK M4 won Gold awards at both the MUSE Design Awards and the London Design Awards.
Battle -50℃ extreme cold, outlast 70℃ blazing heat, endure humidity, shock, and more — KOSPET TANK M4 is a tactical smartwatch, tested by SGS, an independent European lab, against 20 U.S. MIL-STD-810H standards, ready for your most rugged adventures. An integrated ambient light sensor ensures its 1.96-inch AMOLED display remains clear from dawn to dusk.
As magnificent as its 1.96-inch AMOLED display with peak brightness of 1000 nits, KOSPET TANK M4 features an embedded ambient light sensor that automatically adjusts the screen brightness based on the surrounding ambient light conditions.
Resolution
PPI
Peak Brightness
Refresh Rate
From the bezel and the case to physical buttons, KOSPET TANK M4 is sculpted with an Inox 360 shield structure featuring full stainless steel construction, striking the perfect balance between exceptional strength and timeless design.
Tested and proven by SGS, the Europe’s leading independent lab, KOSPET TANK M4 demonstrates its superior resilience and toughness by passing up to 20 U.S. MIL-STD-810H tests. The rugged smartwatch thrives with you, however dusty, muddy, or rainy the adventure gets.
With 10 ATM and IP69K water resistance ratings, KOSPET TANK M4 is not just a rugged smartwatch but also a reliable scuba diving watch alternative. It is built to endure 100-meter water pressure and support dives up to 45 meters—making every swim, surf, or dive worry-free.
10 ATM
Water Resistance
Tested by SGS, Europe's leading independent lab.
*Note: The smartwatch should not be worn during hot showers, in saunas, or during any other activities that involve high temperatures and/or high levels of humidity.
Built to endure 10 ATM and IP69K conditions, the KOSPET TANK M4 functions as a versatile waterproof smartwatch, offering three dedicated dive modes to enrich your underwater experiences. Explore a wide array of diving metrics, including depth, dive time, ascent and descent rates, and more.
Besides tracking surface intervals crucial for diving safety, KOSPET TANK M4 monitors each freediving session with data like dive time, maximum depth, and average temperature, complemented by its built-in breath-holding training and tests for improved stamina. Learn More »
Preset parameters like oxygen percentage and PO2 limit on KOSPET TANK M4, and get a broader picture of your recreational scuba diving. Apart from underwater insights such as NDL, the smartwatch comes with safety stops and decompression stops to help you reduce the risk of decompression sickness. Learn More »
The Gauge mode on KOSPET TANK M4 functions as a basic bottom timer or as a backup to a dedicated dive computer. It displays dive time and depth to provide experienced divers with more control underwater. Learn More »
Thanks to support for 23 ApexMotion sports modes and 160 freestyle training modes, KOSPET TANK M4 stands out among cool outdoor watches, serving to track your every movement and every effort through a broad range of specialized data — from real-time running metrics and elevation gain to pool laps and gym workouts.
Running
Cycling
Swimming
Skiing
Mountaineering
More Modes
With its advanced 6-axis gyroscope, KOSPET TANK M4 keeps up with your intense workouts and swift directional changes. It accurately captures shifts in motion, posture, and momentum — delivering more precise data, smarter activity analysis, and deeper insights into how your body performs when it matters most.
KOSPET TANK M4 is designed for elite runners and those who aspire to push their limits. With support from precision dual-band (L1+L5) and six satellite positioning systems, the smartwatch tracks every lap in track running and every route during trail running with exceptional precision.
To give a strong boost in positioning and keep pace with your performance, KOSPET TANK M4 leverages the brand new OPDR algorithm that tracks your real-time activity status despite weak or unavailable GPS signals — under bridges, among high-rise buildings, and other challenging conditions.
KOSPET TANK M4 is a smartwatch with 32 storage capacity for impressive music and offline map storage. It holds about 100 offline maps or 5,000 songs, giving you both navigation and entertainment without relying on your phone—perfect for staying informed and inspired on the go.
*Disclaimer: Actual available storage may be less than 32GB due to system software. Music and map capacity varies based on file format, quality, and usage conditions.
Chart and navigate your own path with KOSPET TANK M4 — import GPX or KML route files via the Apexmove App or download offline maps online using your computer or tablet.
Whether you are cycling through the woods or hiking along a trail with your friends, use the built-in Walkie-talkie on KOSPET TANK M4 to instantly communicate with each other via a simple touch-and-hold.
*Range may vary with environmental conditions.
Powered by the cutting-edge 4PD health sensor that captures richer optical signals for improved measurement precision, KOSPET TANK M4 elevates daily health monitoring to a whole new level, even during high-intensity workouts.
With up to 15 days of typical use, KOSPET TANK M4 is a smartwatch with long battery life meticulously built to perform in peak condition, so you never have to worry about power between charges while moving, training, or exploring.
Typical Usage
Typical Use Battery Life
Continuous GPS Usage
Continuous GPS Usage
Heavy Use
Heavy Use Battery Life
AOD Mode
AOD Mode Battery Life
Lightweight, compact, and easy-to-store, our new power pocket can deliver more than one full charge for KOSPET TANK M4. Featuring a magnetic connector, the power pocket allows for simultaneous charging with the smartwatch.
*Note: The portable power pocket is sold separately.
>1 full charge
Battery Life
*Note: The portable power pocket is sold separately.
>1 full charge
Battery Life
Get a brand new experience in
Powered by
Welcome to Our Self-developed
The user-centered Apexmove App provides in-depth health and fitness data recorded by KOSPET TANK M4, and enables you to customize training plans and feature cards, create your own routes or location points, and so much more.
Head to the Apexmove App and customize your watch face for KOSPET TANK M4 by switching between different widgets, themes, and layouts. Tailor every detail to craft the perfect look.
Customize your watch face by switching widgets for date, calories, battery level, and more.
Upload your favourite image to the Apexmove App and set it as your watch face.
Customize and schedule your AOD watch face, or let it match the current theme.
Choose from three distinct icon‑based UI themes that go with your style and vibe.
Feel free to manage shortcut cards and access most-used features with a simple swipe.
Select from six menu styles and three transition effects for your preferred system look and feel.
At KOSPET, we strive to incorporate environmental sustainability into every piece of our product and contribute to a more sustainable future. KOSPET TANK M4 comes packaged in 100% environmentally-friendly materials, ranging from a recyclable nylon watch strap to printing and packaging free from mineral oils.
*Coral adoption certificate courtesy of Coral Guardian
KOSPET |  KOSPET | |
|---|---|---|
| General | ||
Storage |
|
|
Memory |
|
|
Body Material |
|
|
Case Back Material |
|
|
Dimensions |
|
|
Weight (Without Package) |
|
|
Built-in Speaker/Microphone |
|
|
Buttons |
|
|
Water-resistance Grade |
|
|
Strap Material |
|
|
Quick Release Straps |
|
|
Min & Max. Wrist Dimensions |
|
|
| Display | ||
Touchscreen |
|
|
Material |
|
|
Size |
|
|
Display Resolution |
|
|
PPI |
|
|
Peak Brightness |
|
|
| Battery | ||
Battery Capacity |
|
|
Battery Type |
|
|
Charging Method |
|
|
Theoretical Charging Duration |
|
|
Typical Usage Scenario Battery Life |
|
|
Heavy Usage Scenario Battery Life |
|
|
AOD Mode Battery Life |
|
|
Continuous GPS Usage Battery Life |
|
|
| Sensors | ||
Health |
|
|
Movement |
|
|
GPS |
|
|
Galileo |
|
|
GLONASS |
|
|
BeiDou |
|
|
QZSS |
|
|
NavIC (IRNSS) |
|
|
Geomagnetic Sensor |
|
|
Barometric |
|
|
Altimeter |
|
|
Ambient Light Sensor |
|
|
Temperature Sensor |
|
|
| Health & Wellness Monitoring | ||
24H Health Monitoring |
|
|
One-tap Measurement |
|
|
Heart Rate |
|
|
Blood Oxygen (SpO₂) |
|
|
Blood Pressure |
|
|
Stress Level |
|
|
Mood |
|
|
Sleep Stages (including REM) |
|
|
Naps |
|
|
Sleep Schedule |
|
|
Abnormally High & Low Heart Rate |
|
|
Low Blood Oxygen |
|
|
Menstrual Cycle Tracking |
|
|
Breathing Exercise |
|
|
| Outdoor Features | ||
GPS Positioning |
|
|
Flashlight |
|
|
Compass |
|
|
Barometric Altimeter |
|
|
Altitude Calibration |
|
|
Route Records |
|
|
Route Deviation Reminders |
|
|
Route Back |
|
|
Offline Maps |
|
|
Real-time Navigation |
|
|
Route Import |
|
|
Save Location Points & Routes |
|
|
Walkie-talkie |
|
|
Moon Phase |
|
|
Tides |
|
|
Extreme Weather Alerts |
|
|
Sunrise & Sunset Times |
|
|
| Training Features | ||
24-Hr Activity Tracking (Calories, Steps, Distance) |
|
|
Personalized Training Plans |
|
|
Smart Recognition |
|
|
ApexMotion Sports |
|
|
Freestyle Training Modes |
|
|
Freedive Mode |
|
|
Scuba Dive Mode |
|
|
Gauge Mode |
|
|
| Running Features | ||
Distance |
|
|
Average Pace |
|
|
Cadence |
|
|
Average Step Rate |
|
|
Real-time Navigation |
|
|
Route Tracking |
|
|
Heart Rate Monitoring |
|
|
Heart Rate Zones |
|
|
| Swimming Features | ||
SWOLF |
|
|
Average Pace |
|
|
Stroke Recognition |
|
|
Stroke Rate |
|
|
Lap Count |
|
|
Heart Rate Monitoring |
|
|
Heart Rate Zones |
|
|
| Daily Smart Features | ||
Connectivity |
|
|
Notifications |
|
|
Alarm Clock |
|
|
Calculator |
|
|
Calendar |
|
|
Call Quick Reply (Android Devices Only) |
|
|
Camera Control |
|
|
Cover to Lock Screen |
|
|
Do Not Disturb |
|
|
Emergency SOS |
|
|
Find Phone |
|
|
GPS Time |
|
|
Morning Updates |
|
|
Music Control |
|
|
Music Storage |
|
|
Raise to Wake |
|
|
Screen Lock & Password |
|
|
Sedentary Reminder |
|
|
Shortcut Cards |
|
|
Silent Mode |
|
|
Stopwatch |
|
|
Timer |
|
|
Voice Assistant |
|
|
Water Ejection |
|
|
Weather |
|
|
World Clock |
|
|
| Compatibility | ||
System Requirements |
|
|
Application |
|
|
Available on Google Play | ||
Available on App Store | ||
Languages |
|
|
Third-party App Compatibility |
|
|
